** Changed in: python-novaclient
Status: Fix Committed => Fix Released
** Changed in: python-novaclient
Milestone: None => 2.28.0
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https://bugs.launchpad.net/bugs/1491325
Title:
nova api v2.1 does not allow to use autodetection of volume device
path
Status in OpenStack Compute (nova):
In Progress
Status in python-novaclient:
Fix Released
Bug description:
Using API v2.1 we are forced to provide device path attaching a volume
to an instance.
using API v2.0 it allowed to provide 'auto' and in this case Nova
calculated it by itself.
It is very useful when we do not care about exact device path.
using APi v2.1 Nova, at first verifies request body [1] and only then
have logic to autodetect "device path". So, either autodetect is dead
code now or request validation should be changed.
For the moment, this bug is blocker for Manila project.
We get one of two errors:
Returning 400 to user: Invalid input for field/attribute device.
Value: None. None is not of type 'string' __call__
or
Returning 400 to user: Invalid input for field/attribute device.
Value: auto. u'auto' does not match
'(^/dev/x{0,1}[a-z]{0,1}d{0,1})([a-z]+)[0-9]*$'
Where Nova client says explicitly:
$ nova help volume-attach
usage: nova volume-attach <server> <volume> [<device>]
Attach a volume to a server.
Positional arguments:
<server> Name or ID of server.
<volume> ID of the volume to attach.
<device> Name of the device e.g. /dev/vdb. Use "auto" for autoassign (if
supported)
That "device" is optional and can be set to 'auto'.
[1]
https://github.com/openstack/nova/blob/b7c8a73824211db9627962abd31b8801cc2c2880/nova/api/openstack/compute/volumes.py#L270
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